19825766836380 has 36 divisors (see below), whose sum is σ = 60138159404232. Its totient is φ = 5286871156320.

The previous prime is 19825766836363. The next prime is 19825766836427. The reversal of 19825766836380 is 8363866752891.

It is a happy number.

19825766836380 is a `hidden beast` number, since 1 + 9 + 8 + 257 + 6 + 6 + 8 + 363 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×19825766836380² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19825766836299 and 19825766836308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55071574366 + ... + 55071574725.

Almost surely, 2^{19825766836380} is an apocalyptic number.

19825766836380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19825766836380 is an abundant number, since it is smaller than the sum of its proper divisors (40312392567852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19825766836380 is a wasteful number, since it uses less digits than its factorization.

19825766836380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110143149106 (or 110143149101 counting only the distinct ones).

The product of its (nonzero) digits is 627056640, while the sum is 72.

The spelling of 19825766836380 in words is "nineteen trillion, eight hundred twenty-five billion, seven hundred sixty-six million, eight hundred thirty-six thousand, three hundred eighty".